A Database of Drosophila Genes & Genomes

FB2008_07, released August 8, 2008
 

Reference Report

Reference
Citation O'Hare, K., Tam, J.L., Lim, J.K., Yurchenko, N.N., Zakharov, I.K. (1998). Rearrangements at a hobo element inserted into the first intron of the singed gene in the unstable sn[49] system of Drosophila melanogaster.  Molec. gen. Genet. 257(4): 452--460.
FlyBase ID FBrf0101971
Type of publication Research paper
Offprint Available Yes
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PubMed ID 9529526
PubMed Abstract The cytological structure of the X chromosome and the DNA organisation of the singed locus were examined in five singed bristle mutants of Drosophila melanogaster. These mutants are all derived from the unstable mutant singed-49, isolated from a wild population in the Russian Far East in 1975. Rearrangements were found at a site within the first intron of the singed gene, where a hobo element is inserted in these mutants. One rearrangement, which is associated with a strong bristle phenotype, has an inversion between 2D and the location of singed at 7D, which separates the singed promoter from the singed coding region. Two phenotypically wild-type derivatives have smaller rearrangements within the first intron which do not appear to interfere with singed expression. Two derivatives with bristle phenotypes have more complex rearrangements, and one of them shows a dominant or antimorphic phenotype. DNA blotting and in situ hybridisation experiments show that, in addition to these rearrangements at a hobo element inserted at singed, other hobo elements in these strains have been mobilised. This system is therefore similar to others in which functional hobo elements continue to transpose, resulting in elevated rates of mutation and chromosome rearrangement.
Biosis 1179937
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Language of publication English
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Abbreviation Molec. gen. Genet.
Title Molecular and General Genetics
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Volume range 99-264
Year range 1967-2001
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Place of publication Berlin
Language of publication English
ISBN/ISSN 0026-8925
CODEN MGGEAE
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